CVE Vulnerabilities

CVE-2022-21919

Improper Link Resolution Before File Access ('Link Following')

Published: Jan 11, 2022 | Modified: Dec 21, 2023
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

Windows User Profile Service Elevation of Privilege Vulnerability

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Windows_10 Microsoft - (including) - (including)
Windows_10 Microsoft 20h2 (including) 20h2 (including)
Windows_10 Microsoft 21h1 (including) 21h1 (including)
Windows_10 Microsoft 21h2 (including) 21h2 (including)
Windows_10 Microsoft 1607 (including) 1607 (including)
Windows_10 Microsoft 1809 (including) 1809 (including)
Windows_10 Microsoft 1909 (including) 1909 (including)
Windows_11 Microsoft - (including) - (including)
Windows_7 Microsoft –sp1 (including) –sp1 (including)
Windows_8.1 Microsoft - (including) - (including)
Windows_server Microsoft 20h2 (including) 20h2 (including)
Windows_server Microsoft 2022 (including) 2022 (including)
Windows_server_2008 Microsoft –sp2 (including) –sp2 (including)
Windows_server_2008 Microsoft r2-sp1 (including) r2-sp1 (including)
Windows_server_2012 Microsoft - (including) - (including)
Windows_server_2012 Microsoft r2 (including) r2 (including)
Windows_server_2016 Microsoft - (including) - (including)
Windows_server_2019 Microsoft - (including) - (including)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References